# Matrix3i

`import { Matrix3i } from "destack:math";`

Three-by-three signed integer matrix.

```ds title="Matrix3i"
export type Matrix3i = Matrix3<int32>
```

[language/library/src/math/matrix.ds:71](https://github.com/destack-sh/destack/blob/main/language/library/src/math/matrix.ds#L71)